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2131023111113 = 13411139874691
BaseRepresentation
bin11111000000101010111…
…000000010001111001001
321112201112122221112012002
4133000222320002033021
5234403313404023423
64310551205000345
7306650511400451
oct37005270021711
97481478845162
102131023111113
11751841a99496
122a500b3b30b5
13125c543a85a0
14751dbba0d61
153a675a8a228
hex1f02ae023c9

2131023111113 has 8 divisors (see below), whose sum is σ = 2295506269056. Its totient is φ = 1966619710800.

The previous prime is 2131023111073. The next prime is 2131023111131. The reversal of 2131023111113 is 3111113201312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131023111113 - 210 = 2131023110089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131023111143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19883903 + ... + 19990788.

It is an arithmetic number, because the mean of its divisors is an integer number (286938283632).

Almost surely, 22131023111113 is an apocalyptic number.

It is an amenable number.

2131023111113 is a deficient number, since it is larger than the sum of its proper divisors (164483157943).

2131023111113 is a wasteful number, since it uses less digits than its factorization.

2131023111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39878815.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 2131023111113 its reverse (3111113201312), we get a palindrome (5242136312425).

The spelling of 2131023111113 in words is "two trillion, one hundred thirty-one billion, twenty-three million, one hundred eleven thousand, one hundred thirteen".

Divisors: 1 13 4111 53443 39874691 518370983 163924854701 2131023111113